Honeycomb structural body

Abstract

An object of the present invention is to provide a honeycomb structural body for use in a filter, which can support a large amount of catalysts, can suppress increase in pressure loss upon collecting particulates, can have a high particulate collecting capability and can efficiently carry out a regenerating process and a toxic gas purifying process. The honeycomb structural body according to the present invention is a pillar-shaped honeycomb structural body having a structure in which a plurality of through holes are placed in parallel with one another in the length direction with a partition wall interposed therebetween, wherein lamination members are laminated in the length direction so that the through holes are superposed on one another, and one of ends of each through hole is sealed.

1. A pillar-shaped honeycomb structural body comprising:
 a structure comprising a plurality of lamination members, the plurality of lamination members having a plurality of holes and including a plurality of metal lamination members comprising a material mainly made of metal, the structure having a plurality of through holes extending in parallel with one another in a length direction of the structure and a partition wall portion interposed between the through holes, 
 wherein the lamination members are laminated in the length direction so that the holes of the lamination members are superposed on one another, and the through holes includes ones sealed at a first end of the structure and ones sealed at a second end of the structure such that the structure is configured to filter particles in an exhaust gas. 
 
     
     
       2. The honeycomb structural body according to  claim 1 , wherein the metal lamination members include at least two metal lamination members positioned on the first end and second end of the structure. 
     
     
       3. The honeycomb structural body according to  claim 1 , wherein the plurality of lamination members of the structure is entirely the metal lamination members. 
     
     
       4. The honeycomb structural body according to  claim 1 , further comprising a catalyst supported on the lamination members. 
     
     
       5. A pillar-shaped honeycomb structural body comprising:
 a structure comprising a plurality of lamination members, the plurality of lamination members having a plurality of holes and including a plurality of metal lamination members comprising a material mainly made of metal, the structure having a plurality of through holes extending in parallel with one another in a length direction of the structure and a partition wall portion interposed between the through holes, 
 wherein the plurality of lamination members includes ones having different shapes or sizes of the holes, the lamination members are laminated in the length direction so that the holes of the lamination members are superposed on one another and a surface of the partition wall portion has an irregularity, and the through holes includes ones sealed at a first end of the structure and ones sealed at a second end of the structure such that the structure is configured to filter particles in an exhaust gas. 
 
     
     
       6. The honeycomb structural body according to  claim 5 , further comprising a catalyst supported on the lamination members. 
     
     
       7. The honeycomb structural body according to  claim 1 , wherein the metal comprises one of chromium-based stainless and chromium-nickel-based stainless. 
     
     
       8. The honeycomb structural body according to  claim 5 , wherein the metal comprises one of chromium-based stainless and chromium-nickel-based stainless. 
     
     
       9. The honeycomb structural body according to  claim 1 , wherein the material mainly made of metal comprises one of metal fibers, a metal material with through pores and a sintered metal powder. 
     
     
       10. The honeycomb structural body according to  claim 5 , wherein the material mainly made of metal comprises one of metal fibers, a metal material with through pores and a sintered metal powder. 
     
     
       11. The honeycomb structural body according to  claim 1 , wherein the plurality of lamination members has a porosity set in a range between 50% by volume and 98% by volume. 
     
     
       12. The honeycomb structural body according to  claim 5 , wherein the plurality of lamination members has a porosity set in a range between 50% by volume and 98% by volume. 
     
     
       13. The honeycomb structural body according to  claim 1 , wherein the plurality of lamination members has an average pore diameter set in a range between 1 μm and 100 μm. 
     
     
       14. The honeycomb structural body according to  claim 5 , wherein the plurality of lamination members has an average pore diameter set in a range between 1 μm and 100 μm.